Citrix Netscaler 10 Summary Notes – Getting Started – Day 3

Understanding the NetScaler An Application L4-L7 Switch. Used for Web Applications. Functions as a TCP Proxy Features: Switching Features for optimal distribution of client requests Security and protection Features protects web applications from application-layer attacks Server-farm Optimization Features speeds up applications by offloading resource-intensive operations from the server Placement Request Switching Netscaler is deployed infront of a … Continue reading Citrix Netscaler 10 Summary Notes – Getting Started – Day 3

CCDA 640-864 Summary Notes – Chapter 4 – Day 7

Data Center Design Exam Topic 1: Enterprise DC Architectures Data Center 1.0 Centralized Used mainframes to process and store data Users used terminals to access and work on mainframes benefits: availability, resiliency, and service level agreements (SLA) Data Center 2.0 client/server and distributed computing into the mainstream data center Bussiness applications installed on servers users accessed data … Continue reading CCDA 640-864 Summary Notes – Chapter 4 – Day 7

CCDA 640-864 Summary Notes – Chapter 3 – Day 6

Server Connectivity Options Single NIC (FE GE Full duplex + No redundancy) Dual NIC Etherchannel - redundancy Dual NIC to separate access - redundancy Content switching - redundancy + load balancing per user request Enterprise Data Center Port density for servers Low latency layer 2 Suport both single and dual connected servers Aggregation (Distribution) Layer … Continue reading CCDA 640-864 Summary Notes – Chapter 3 – Day 6

CCDA 640-864 Summary Notes – Day 5

LAN Hardware Repeaters Layer 1 device Connects separate segments Do not control broadcasts or collision domains Forward frames out all other interfaces Protocol transparent understands bits Amplify the signals 5-4-3 Rule: The maximum path between two stations on the network should not be more than five segments, with four repeaters between those segments, and no more than … Continue reading CCDA 640-864 Summary Notes – Day 5

CCDA 640-864 Summary Notes – Day 4

IEEE 802.3-2002 (Ethernet Standards) Design Rules Round trip propagation delay should be less than 512-bit times in one collision domain. Max for 10 Mbps - 51.2 microseconds. Max for 100 Mbps - 5.12 microseconds 10 Base 5 No longer used Max segment = 500 m Max collision domain = 2500m of 5 segments Has a maximum diameter … Continue reading CCDA 640-864 Summary Notes – Day 4

Aruba620 -SSID Prunning on a specific AP

Situation: I have the Aruba620 controller configured with several SSIDs. I would like a specific AP RAP-2WG to announce 3/4 SSIDs. The unlucky SSID that we will prune is Test2-620 🙂 We need to locate that specific AP by MAC address: Configuration > AP Specific > Edit "00:0b:86:xx:xx:xx" Commands: ap-name "00:0b:86:c3:50:9d"   exclude-virtual-ap "Test2-620-vap_prof" Dont forget … Continue reading Aruba620 -SSID Prunning on a specific AP

CCDA 640-864 Summary Notes – Day 3

Hierarchical Network Models Advantages Cost savings Ease of understanding becausee of simple design and lower management costs as monitoring systems are distributed. Network growth as changes are contained to a small subset  of the network and only impact that small area Easy to isolate a problem in the network if the hierarchial model is used … Continue reading CCDA 640-864 Summary Notes – Day 3

Summary Notes: JUNOS as a second Language

Differences between IOS and JUNOS. 1) JUNOS can be managed using the following options: CLI - Console, SSh and Telnet J-Web SNMP Junoscope Junos Script API NETCONF API SDX Service Deployment System 2) Using pipe show interfaces terse show interfaces terse | match se-3 show interfaces terse | except fe- show interfaces terse | count … Continue reading Summary Notes: JUNOS as a second Language